For a 2018 Honda Accord with higher mileage, the recommended oil is 0W-20 full-synthetic engine oil that meets API SN or newer and ILSAC GF-5. If you prefer, you can use a high-mileage variant of 0W-20, but the essential viscosity and certification standards remain the same.
What the 2018 Accord needs in plain terms
The 2018 Honda Accord, whether equipped with the 1.5L turbo or the 2.0L turbo, calls for 0W-20 full-synthetic engine oil that meets API SN or newer and ILSAC GF-5. For engines with high mileage, you can opt for a high-mileage formulation of the same 0W-20 if you notice oil consumption or wish for extra seal conditioners, but this is optional and not strictly required by Honda.
Key oil choices and how to pick them:
- Viscosity: 0W-20, suitable for a wide range of climates and driving styles.
- Oil type: full synthetic (recommended) or high-quality synthetic blend if a full synthetic is unavailable.
- Certifications: API SN or newer, and ILSAC GF-5 or newer.
- High-mileage option: a high-mileage 0W-20 formulation is compatible if you want additives designed for worn engines, but it is optional.
Concluding note on the list above: stick with 0W-20 as your baseline, ensure the oil meets API SN/SN Plus or newer and ILSAC GF-5, and consider a high-mileage variant only if you’re experiencing consumption, leaks, or you prefer additional seal conditioners.
Oil viscosity, certification and engine variants
Understanding what the numbers and labels mean helps you choose correctly. 0W-20 indicates the oil’s flow characteristics in cold starts (the first digit), and its high-temperature viscosity (the second number). API SN (and newer) and ILSAC GF-5 (and newer) are industry performance standards that ensure the oil provides proper protection, fuel efficiency, and engine cleanliness. Both available engines in the 2018 Accord share the same general oil requirements, though you should always check your specific trim and any factory service bulletins.
Engine variations and their oil needs
The 2018 Honda Accord offered two main turbocharged engines: the 1.5L turbo and the 2.0L turbo. Both generally require the same 0W-20 full-synthetic oil that meets API SN/SN Plus or newer and ILSAC GF-5. If your high-mileage engine shows unusual oil consumption or leaks, you may consider a high-mileage formulation of 0W-20, but verify it meets the standard specifications.
Maintaining a high-mileage Accord: practical tips
High-mileage engines benefit from careful maintenance beyond simply the oil you choose. The following guidelines help keep your Accord running smoothly as miles accumulate.
Examples of practices to help a high-mileage engine stay reliable:
- Follow the owner’s manual oil-change intervals and use a high-quality 0W-20 oil that meets API SN/SN Plus or newer and ILSAC GF-5.
- Regularly check oil level and top up if needed using the correct 0W-20 grade; do not mix oils of different viscosities.
- Consider a high-mileage oil if you notice increased oil consumption or minor leaks, but ensure it still meets the required certifications.
- Replace the oil filter with every oil change to maximize contaminant removal and engine protection.
- Keep the air intake and PCV system clean, and address any unusual noises, smoke, or exhaust smells promptly to prevent accelerated wear.
Regular upkeep, attentive monitoring of oil consumption, and adherence to Honda’s maintenance schedule help extend the life of a high-mileage Accord.
Summary
In short, for a high-mileage 2018 Honda Accord, use 0W-20 full-synthetic oil that meets API SN or newer and ILSAC GF-5. A high-mileage variant of 0W-20 is optional but acceptable if you want additional wear-prevention additives. Always follow the owner’s manual for the exact interval and capacity, and consider switching to high-mileage oil only if you notice consumption or wear symptoms.
How long does 0W-20 synthetic oil last on a Honda?
Honda generally recommends changing the oil every 7,500 to 10,000 miles for vehicles using full synthetic oil. However, if your Honda uses conventional oil, an oil change is needed every 3,000 to 5,000 miles. Always refer to your owner's manual for your specific model's recommendations.
What oil to use for a high mileage Honda Accord?
Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 5W-30. This formula utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles.
What kind of oil should I put in my 2018 Honda Accord?
The recommended Honda Accord oil is generally a synthetic 0W-20 formula.
Can I use 5W30 instead of 0W20 in my Honda Accord?
"Use what the manufacturer recommends!" It's worth noting that some owners have reported using 5W-30 in their Honda Accords without issues, but others advise sticking to the recommended viscosity to avoid potential problems. The owner's manual for a 2017 Honda Accord V6 recommends 0W -20 or 5W-20 oil.